/**
 * Copyright (c) 2014,Egret-Labs.org
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Egret-Labs.org nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY EGRET-LABS.ORG AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL EGRET-LABS.ORG AND CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
var egret;
(function (egret) {
    /**
     *
     * @private
     */
    var WebGLShaderManager = (function () {
        function WebGLShaderManager(gl) {
            this.gl = null;
            this.maxAttibs = 10;
            this.attribState = [];
            this.tempAttribState = [];
            this.currentShader = null;
            this.defaultShader = null;
            this.primitiveShader = null;
            this.colorTransformShader = null;
            this.blurShader = null;
            for (var i = 0; i < this.maxAttibs; i++) {
                this.attribState[i] = false;
            }
            this.setContext(gl);
        }
        var __egretProto__ = WebGLShaderManager.prototype;
        __egretProto__.setContext = function (gl) {
            this.gl = gl;
            this.primitiveShader = new egret.PrimitiveShader(gl);
            this.defaultShader = new egret.EgretShader(gl);
            this.colorTransformShader = new egret.ColorTransformShader(gl);
            this.blurShader = new egret.BlurShader(gl);
            this.activateShader(this.defaultShader);
        };
        __egretProto__.activateShader = function (shader) {
            if (this.currentShader != shader) {
                this.gl.useProgram(shader.program);
                this.setAttribs(shader.attributes);
                this.currentShader = shader;
            }
        };
        __egretProto__.setAttribs = function (attribs) {
            var i;
            var l;
            l = this.tempAttribState.length;
            for (i = 0; i < l; i++) {
                this.tempAttribState[i] = false;
            }
            l = attribs.length;
            for (i = 0; i < l; i++) {
                var attribId = attribs[i];
                this.tempAttribState[attribId] = true;
            }
            var gl = this.gl;
            l = this.attribState.length;
            for (i = 0; i < l; i++) {
                if (this.attribState[i] !== this.tempAttribState[i]) {
                    this.attribState[i] = this.tempAttribState[i];
                    if (this.tempAttribState[i]) {
                        gl.enableVertexAttribArray(i);
                    }
                    else {
                        gl.disableVertexAttribArray(i);
                    }
                }
            }
        };
        return WebGLShaderManager;
    })();
    egret.WebGLShaderManager = WebGLShaderManager;
    WebGLShaderManager.prototype.__class__ = "egret.WebGLShaderManager";
})(egret || (egret = {}));
